Opening and closing device for the seat or the seat lid of a toilet bowl



FIG. 1 is a side elevational view of the opening and closing device for the seat or the seat lead of a toilet bowl;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a top, front, left perspective view thereof. 

The ornamental design for an opening and closing device for the seat or the seat lid of a toilet bowl, as shown and described. 